In message fc.004c4e48001e7bee004c4e48001e648f.1e7c14@rea.de you wrote:
Another solution could be to add two fields to struct bd_info, e.g. bi_sernum and bi_revision, possibly "protected" by #ifdef CONFIG_SERNUM_TAG and #ifdef CONFIG_REVISION_TAG (bi_sernum is already defined similarly for at least the NX823), and have armlinux pass those to the kernel.
How would you do this, then? To pass this information you would probably create the custom tags discussed earlier, right?
This is arguably a cleaner solution than my generic hook.
I'm not so sure. Keep in mind that the bd_info structure comes from the PowerPC architecture, wher eit is (more or less directly) passed to the Linux kernel. For ARM it is not such a natural thing to use. And in the long run (when PPC finally starts using bi_recs) it may disappear there, too.
Best regards,
Wolfgang Denk